Add support for adjusting jbig2 threshold

2023-09-17 14:44:40 -07:00
parent 4bee7355e9
commit ac2fc49208
4 changed files with 28 additions and 7 deletions
@@ -367,6 +367,7 @@ def _produce_jbig2_images(
                fspath(root),  # =cwd
                (img_name(root, xref, ext) for xref, ext in xref_exts),  # =infiles
                prefix,  # =out_prefix
+                options.jbig2_threshold,
            )

    def jbig2_single_args(root, groups: dict[int, list[XrefExt]]):
@@ -379,6 +380,7 @@ def _produce_jbig2_images(
                    fspath(root),
                    img_name(root, xref, ext),
                    root / f'{prefix}.{n:04d}',
+                    options.jbig2_threshold,
                )

    if options.jbig2_page_group_size > 1:
@@ -737,6 +739,7 @@ def main(infile, outfile, level, jobs=1):
            self.png_quality = png_quality
            self.jbig2_page_group_size = 0
            self.jbig2_lossy = jb2lossy
+            self.jbig2_threshold = 0.85
            self.quiet = True
            self.progress_bar = False